{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["Chemical"], "input": "We now report that the ubiquitous autacoid and neuromodulator , histamine , induces substantial glutamate - activated calcium mobilization in mGlu ( 4 ) - expressing cells , an effect which is observed in the absence of co - expressed chimeric G proteins ."}
{"Chemical": ["histamine", "glutamate", "calcium"]}